//@ts-check

'use strict'

const path = require('path')
const webpack = require('webpack')

//@ts-check
/** @typedef {import('webpack').Configuration} WebpackConfig **/

module.exports = (env, argv) => {
  const { mode } = argv
  const isProd = mode === 'production'
  const isDev = mode === 'development'
  return {
    target: 'node', // vscode extensions run in a Node.js-context 📖 -> https://webpack.js.org/configuration/node/
    mode: isProd ? 'production' : 'development', // this leaves the source code as close as possible to the original (when packaging we set this to 'production')

    entry: './src/extension.ts', // the entry point of this extension, 📖 -> https://webpack.js.org/configuration/entry-context/
    output: {
      // the bundle is stored in the 'dist' folder (check package.json), 📖 -> https://webpack.js.org/configuration/output/
      path: path.resolve(__dirname, 'dist'),
      filename: 'extension.js',
      libraryTarget: 'commonjs2',
    },
    externals: {
      vscode: 'commonjs vscode', // the vscode-module is created on-the-fly and must be excluded. Add other modules that cannot be webpack'ed, 📖 -> https://webpack.js.org/configuration/externals/
      // modules added here also need to be added in the .vscodeignore file
    },
    resolve: {
      // support reading TypeScript and JavaScript files, 📖 -> https://github.com/TypeStrong/ts-loader
      extensions: ['.js', '.ts'],
      // extensions: ['.ts', '.js'],
    },
    module: {
      rules: [
        {
          test: /\.ts$/,
          exclude: /node_modules/,
          use: [
            {
              loader: 'ts-loader',
            },
          ],
        },
      ],
    },
    devtool: 'nosources-source-map',
    infrastructureLogging: {
      level: 'log', // enables logging required for problem matchers
    },
    plugins: [
      new webpack.DefinePlugin({
        'global.__DEV__': JSON.stringify(isDev ? true : false),
      }),
    ],
  }
}
